mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 06:12:58 +00:00
fed329aebe
mksunxiboot is useful outside of u-boot, it is e.g. used by sunxi-tools. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
/*
|
|
* (C) Copyright 2007-2011
|
|
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
|
|
* Tom Cubie <tangliang@allwinnertech.com>
|
|
*
|
|
* a simple tool to generate bootable image for sunxi platform.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include "../arch/arm/include/asm/arch-sunxi/spl.h"
|
|
|
|
#define STAMP_VALUE 0x5F0A6C39
|
|
|
|
/* check sum functon from sun4i boot code */
|
|
int gen_check_sum(struct boot_file_head *head_p)
|
|
{
|
|
uint32_t length;
|
|
uint32_t *buf;
|
|
uint32_t loop;
|
|
uint32_t i;
|
|
uint32_t sum;
|
|
|
|
length = le32_to_cpu(head_p->length);
|
|
if ((length & 0x3) != 0) /* must 4-byte-aligned */
|
|
return -1;
|
|
buf = (uint32_t *)head_p;
|
|
head_p->check_sum = cpu_to_le32(STAMP_VALUE); /* fill stamp */
|
|
loop = length >> 2;
|
|
|
|
/* calculate the sum */
|
|
for (i = 0, sum = 0; i < loop; i++)
|
|
sum += le32_to_cpu(buf[i]);
|
|
|
|
/* write back check sum */
|
|
head_p->check_sum = cpu_to_le32(sum);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define ALIGN(x, a) __ALIGN_MASK((x), (typeof(x))(a)-1)
|
|
#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
|
|
|
|
#define SUN4I_SRAM_SIZE 0x7600 /* 0x7748+ is used by BROM */
|
|
#define SRAM_LOAD_MAX_SIZE (SUN4I_SRAM_SIZE - sizeof(struct boot_file_head))
|
|
|
|
/*
|
|
* BROM (at least on A10 and A20) requires NAND-images to be explicitly aligned
|
|
* to a multiple of 8K, and rejects the image otherwise. MMC-images are fine
|
|
* with 512B blocks. To cater for both, align to the largest of the two.
|
|
*/
|
|
#define BLOCK_SIZE 0x2000
|
|
|
|
struct boot_img {
|
|
struct boot_file_head header;
|
|
char code[SRAM_LOAD_MAX_SIZE];
|
|
char pad[BLOCK_SIZE];
|
|
};
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int fd_in, fd_out;
|
|
struct boot_img img;
|
|
unsigned file_size;
|
|
int count;
|
|
|
|
if (argc < 2) {
|
|
printf("\tThis program makes an input bin file to sun4i " \
|
|
"bootable image.\n" \
|
|
"\tUsage: %s input_file out_putfile\n", argv[0]);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
fd_in = open(argv[1], O_RDONLY);
|
|
if (fd_in < 0) {
|
|
perror("Open input file");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
memset(&img, 0, sizeof(img));
|
|
|
|
/* get input file size */
|
|
file_size = lseek(fd_in, 0, SEEK_END);
|
|
|
|
if (file_size > SRAM_LOAD_MAX_SIZE) {
|
|
fprintf(stderr, "ERROR: File too large!\n");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
fd_out = open(argv[2], O_WRONLY | O_CREAT, 0666);
|
|
if (fd_out < 0) {
|
|
perror("Open output file");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/* read file to buffer to calculate checksum */
|
|
lseek(fd_in, 0, SEEK_SET);
|
|
count = read(fd_in, img.code, file_size);
|
|
if (count != file_size) {
|
|
perror("Reading input image");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/* fill the header */
|
|
img.header.b_instruction = /* b instruction */
|
|
0xEA000000 | /* jump to the first instr after the header */
|
|
((sizeof(struct boot_file_head) / sizeof(int) - 2)
|
|
& 0x00FFFFFF);
|
|
memcpy(img.header.magic, BOOT0_MAGIC, 8); /* no '0' termination */
|
|
img.header.length =
|
|
ALIGN(file_size + sizeof(struct boot_file_head), BLOCK_SIZE);
|
|
img.header.b_instruction = cpu_to_le32(img.header.b_instruction);
|
|
img.header.length = cpu_to_le32(img.header.length);
|
|
|
|
memcpy(img.header.spl_signature, SPL_SIGNATURE, 3); /* "sunxi" marker */
|
|
img.header.spl_signature[3] = SPL_HEADER_VERSION;
|
|
|
|
gen_check_sum(&img.header);
|
|
|
|
count = write(fd_out, &img, le32_to_cpu(img.header.length));
|
|
if (count != le32_to_cpu(img.header.length)) {
|
|
perror("Writing output");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
close(fd_in);
|
|
close(fd_out);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|